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Bhavana Dalvi

2 accepted papers

2022

DREAM: Improving Situational QA by First Elaborating the Situation

NAACL 2022long

When people answer questions about a specific situation, e.g., “I cheated on my mid-term exam last week. Was that wrong?”, cognitive science suggests that they form a mental picture of that situation before answering. While we do not know how language models (LMs) answer such questions, we conjectur…

2021

Explaining Answers with Entailment Trees

EMNLP 2021main

Our goal, in the context of open-domain textual question-answering (QA), is to explain answers by showing the line of reasoning from what is known to the answer, rather than simply showing a fragment of textual evidence (a “rationale”). If this could be done, new opportunities for understanding and…